Incoloy Pipe Fittings Manufacturer, Supplier & Exporter in India - Mcneil Instruments
Mcneil Instruments is a trusted Incoloy Pipe Fittings manufacturer, supplier, and exporter in India, offering a wide range of grades like Incoloy 800, 800H, 825, and 925, tailored to demanding industrial applications.
Incoloy Pipe Fittings are high-performance alloy fittings made from nickel-iron-chromium-based superalloys, specifically engineered for extreme environments involving high temperatures, corrosive chemicals, and seawater exposure. Known for their exceptional resistance to oxidation, carburization, and acidic attacks, these fittings are widely used in power plants, petrochemical facilities, marine systems, and chemical processing industries.
Incoloy pipe fittings are nickel-iron-chromium alloy components designed for piping systems that face high temperatures, oxidation, carburization, and corrosive chemicals. These fittings are chosen where stainless steel and many other alloys cannot maintain strength or resist corrosion over long operating cycles.
What this really means is dependable performance in process lines that run hot, handle chemicals, and stay under stress for years.
Common Types of Incoloy Pipe Fittings
We supply Incoloy pipe fittings in all standard configurations:
Elbows – Directional flow control in thermal and corrosive lines
Tees & Crosses – Reliable branching in process systems
Reducers – Smooth transitions between pipe sizes
Couplings & Unions – Leak-resistant straight connections
Caps & Plugs – Secure pipe-end closures
Stub Ends – Easy dismantling with lap joint flanges
Each fitting is precision-manufactured for dimensional accuracy and leak-free performance.
Incoloy Grades We Offer
Different grades of Incoloy are selected based on temperature and corrosion conditions:
Incoloy 800 – High-temperature oxidation and carburization resistance
Incoloy 800H – Improved creep and rupture strength for long heat exposure
Incoloy 825 – Excellent resistance to acids and chloride corrosion
Incoloy 925 – Higher strength with corrosion resistance for sour service
Choosing the right grade depends on the chemical environment and operating stress.
Incoloy 800 Pipe Fittings – Manufacturer, Supplier & Exporter in India
Mcneil Instruments is a trusted Incoloy 800 Pipe Fittings manufacturer, supplier, and exporter in India, delivering high-performance solutions engineered for thermal stability and resistance to oxidation. Incoloy 800 is an iron–nickel–chromium alloy designed for high-temperature structural applications. It retains its strength and resists oxidation, carburization, and other types of high-temperature corrosion.
These fittings are ideal for use in equipment such as heat exchangers, process piping, superheaters, and petrochemical processing plants where temperature resistance is key. Incoloy 800 also shows excellent resistance to chloride stress-corrosion cracking.
Technical Specifications:
| Material | Incoloy 800 (UNS N08800) |
| Standard | ASTM B366 / ASME SB366 |
| Size Range | ½” to 24” |
| Temperature | Up to 1100°F (593°C) |
| Strength | High-temperature creep strength |
| Applications | Heat exchangers, nuclear plants, furnace parts |
Incoloy 800H Pipe Fittings – Manufacturer, Supplier & Exporter in India
Incoloy 800H Pipe Fittings from Mcneil Instruments are specifically developed for higher temperature strength than Incoloy 800. With greater carbon content, Incoloy 800H offers superior creep and rupture strength at elevated temperatures above 600°C. It is a go-to choice for reheaters, pressure vessels, and ethylene furnace components.
Its metallurgical stability and resistance to oxidation make it valuable in thermal and chemical processing sectors.
Technical Specifications:
| Material | Incoloy 800H (UNS N08810) |
| Standard | ASTM B366 / ASME SB366 |
| Size Range | ½” to 24” |
| Temperature | Up to 1000°C |
| Carbon Content | 0.05% to 0.10% |
| Applications | Reformer tubing, pressure vessels, heat treat baskets |
Incoloy 825 Pipe Fittings – Manufacturer, Supplier & Exporter in India
Incoloy 825 Pipe Fittings, offered by Mcneil Instruments, are well known for their excellent resistance to both reducing and oxidizing acids. The high nickel content makes it resistant to chloride-induced stress corrosion, while molybdenum enhances its resistance to pitting and crevice corrosion. It’s widely used in chemical tanks, pickling equipment, and marine exhaust systems.
Incoloy 825 fittings are a staple for industries handling sulfuric, phosphoric, and nitric acid environments.
Technical Specifications:
| Material | Incoloy 825 (UNS N08825) |
| Standard | ASTM B366 / ASME SB366 |
| Size Range | ½” to 24” |
| Nickel Content | ~38–46% |
| Corrosion Resistance | Excellent in sulfuric and nitric acids |
| Applications | Marine exhausts, acid production, pollution control |
Incoloy 925 Pipe Fittings – Manufacturer, Supplier & Exporter in India
At Mcneil Instruments, our Incoloy 925 Pipe Fittings are built for strength and resistance in aggressive environments involving sour gas, seawater, and chloride-bearing media. A precipitation-hardenable alloy, Incoloy 925 combines the strength of age-hardening with the corrosion resistance of Incoloy 825. It is often used in the oil and gas sector, particularly for downhole and surface components exposed to corrosive fluids.
Technical Specifications:
| Material | Incoloy 925 (UNS N09925) |
| Standard | ASTM B366 / ASME SB366 |
| Size Range | ½” to 12” |
| Hardening | Precipitation-hardened |
| Resistance | Sulfide stress corrosion, seawater |
| Applications | Oilfield piping, valve components, fasteners |
Where Incoloy Pipe Fittings Are Used
Incoloy pipe fittings are widely used in industries exposed to heat and corrosion:
Petrochemical Industry – Furnace and heater piping
Chemical Processing Plants – Acid and solvent handling
Oil & Gas Industry – Sour and corrosive process streams
Power Generation – Boilers and heat exchangers
Marine Applications – Chloride exposure environments
Refineries – High-temperature process lines
Incoloy is often selected when both heat resistance and corrosion protection are required.
How to Choose the Right Incoloy Pipe Fittings
When selecting Incoloy pipe fittings, consider:
Operating temperature and exposure duration
Presence of acids, chlorides, or oxidizing atmospheres
Pressure and mechanical stress levels
Welding and fabrication needs
Applicable industry standards
For piping exposed to sustained heat and chemical attack, Incoloy offers long-term reliability.
Manufacturing, Supply & Export from India
We manufacture, supply, and export Incoloy pipe fittings using certified raw materials and precision fabrication methods. Our fittings are:
Produced with tight dimensional tolerances
Tested for corrosion and pressure resistance
Inspected as per international standards
Finished for industrial and marine applications
Securely packed for domestic and global shipment
We support EPC contractors, refineries, chemical plants, and international buyers with consistent quality and timely delivery.
Key Features and Benefits
- Excellent resistance to oxidation and scale at high temperatures
• Good protection against carburization and nitridation
• Strong resistance to acids and chloride environments (selected grades)
• Maintains strength during prolonged heat exposure
• Good weldability and fabrication characteristics
• Long service life with minimal maintenance
These benefits make Incoloy pipe fittings a reliable choice for demanding industrial piping networks.
Why Choose Mcneil Instruments for Incoloy Pipe Fittings
- ISO and CE certified manufacturing with PMI verification
- Precision CNC threading, forging, bending, and flare forming
- Nationwide inventory for rapid dispatch and global export capabilities
- Custom sensitizing, marking, and full material traceability
- Documentation support including 3.1/3.2 material certificates and NDE reports
Typical Industries Served
- Chemical & Petrochemical — acid/chloride-resistant tube systems
- Power Generation — turbine and boiler tubing
- Oil & Gas — offshore risers, subsea manifolds
- Marine & Desalination — long-term chloride exposure
Global Reach of Mcneil Instruments: Incoloy Pipe Fittings
- Saudi Arabia & UAE: Mcneil is a top supplier and exporter of Incoloy pipe fittings for use in oil refineries, petrochemical units, and desalination plants.
- Qatar & Kuwait: We provide Incoloy 800 and 825 pipe fittings for pressure vessels and chemical industries demanding high thermal stability.
- Nigeria: We serve as a reliable exporter of Incoloy 925 pipe fittings, widely used in oil & gas drilling rigs and marine piping.
- Ghana: Mcneil exports corrosion-resistant Incoloy pipe fittings for seawater treatment, chemical handling, and offshore infrastructure.
- USA (Texas, Chicago): Recognized as a leading Incoloy pipe fittings manufacturer, we supply aerospace, heat treatment, and petrochemical pipelines.
- Canada: Incoloy 800H and 825 pipe fittings are supplied for mining, pollution control, and energy generation sectors.
- Singapore & Malaysia: Mcneil is a preferred exporter of Incoloy 800 and 925 pipe fittings, catering to shipbuilding, marine exhaust systems, and thermal process industries.
- Brazil: We are a reputed supplier of Incoloy 825 and 925 pipe fittings in pulp and paper, sulfuric acid production, and offshore oil facilities.
Contact Us
Looking for high-performance Incoloy Pipe Fittings in India? Reach out to Mcneil Instruments for custom solutions, technical consultation, and fast global delivery.
Frequently Asked Questions – Incoloy Pipe Fittings
What makes Incoloy pipe fittings different from stainless steel?
Incoloy performs better at high temperatures and in corrosive environments where stainless steel may fail.
Are Incoloy pipe fittings suitable for chemical plants?
Yes. Certain grades like 825 and 925 are ideal for acid and chloride environments.
Can Incoloy pipe fittings be welded?
Yes. They offer good weldability using standard nickel-alloy procedures.
Which Incoloy grade is best for high-temperature service?
Incoloy 800 and 800H are commonly used for sustained high-heat applications.
Where are Incoloy pipe fittings commonly used?
Petrochemical plants, refineries, power generation units, marine systems, and chemical processing facilities.



